Book



W. C. BARDENHEUER.

BOOK.

APPLICATION FILED APR. 22. 1920.

1,370,265. Pai-med Mar. 1,1921.

2 SHEETS-SHEET l.

INVENTOR WML/Hm C. Emme/vagone ATTORNEYS W. C. BAYRDENHEUER.

BOOK.

APPLICATION FILED APR. 22, 1920.

l Patented Mar.

2 SHEETS-SHEET 2.

Fzllgjl.

lNvENToR Mum/n QEHRnf/Hsl/R ATTORNEYS UNITE-D STATES PATENT OFFICE.

WILLIAM C. BARDENHEUER, OF BROOKLYN, NEW YORK, ASSIGNOR TO BOORUM PEASE COMPANY, OF NEW YORK, N. Y., A. CORPORATION OF NEW YORK.

BOOK.

Specification of Letters Patent.

A Patented Mar. 1, 1921.

Application led April 22, 1920. Serial No. 375,789.

HEUER, a citizen of the United States of` America, residing at 696 East 19th street, borough of Brooklyn, city of New York, and State of New York, have invented certain new and useful Improvements in Books, of which the following 'is a specification.

My invention relates to books, and particularly to books of the loose-leaf binder type. The object of my invention is to improve the construction at the back of the book in the several features hereinafter described or shown in the accompanying drawings, in which- Figure 1 is a perspective View of a lo0seleaf book or binder in which my invention is embodied in one form;

Fig. 2 is an exploded view showing portion of the cover and parts in elevation;

Fig. 3 is a section on the line 33, Fig. 2;

Fig. 4 is a vertical section on the line 4-4, Fig. 2, showing the parts assembled;

Fig. 5 is a perspective of the end cap;

Fig. 6 is an elevation of a back plate of modified construction;

Fig; 7 is a perspective of another modified form of the back plate;

Fig. 8 is a. partial elevation of a back plate of the type shown in Fig. 7, partially assembled with the cover; v

Figs. 9 and 10 are sections on the lines i 9-9 and 10-10, Fig. 8, respectively;

Fig. 11 is a partlal elevation showing a further modified construction partially assembled with the-cover;'and v Fig. 12 is a perspective of a back plate and end cap rigidly united by Welding, or soldering.

In the construction shown in Figs. 1 to 5 inclusive, the book or binder comprises a. cover 15 of iiexible material, such as leather. To the interior of the cover back is secured a lining strip 16 of fabric or thin leather, which may be either glued in place, or stitched, as at 17, Fig. 3, or both glued and stitched, as in the construction shown. A concaved metal back plate 18 with inwardly curved marginal flanges 19 is not only glued to the lining piece 16, but securely held in position by the overlapped side flaps 20 of,

the latter, which are glued and `smoothed against the inside of the marginal channels and inner face of the back plate. In order to neatly finish the lining at the ends of the back plate the side iaps 20 are slit at 21 and folded inward before gluing in position.

It win be noted that the end ef the beek plate is thus left exposed (as shown at the top of Fig. 2), and that the cover 15 is held against -the outer face thereofionly by the lining piece 1 6. Moreover, upon the assembly of the ring carrier 22 by springing it within the flanges 19 of the back plate and pushing it longitudinally in the usual man'- ner to latch the tongues 23 of the back plate in the holes 24 in the inner wall of the ring carrier, the flaps 21 of the lining piece are very apt to be torn away from the back plate and forced beyond the end of the carrier. When this occurs thev end flaps become conspicuous, and being loose sooi'i fray out and become unsightly. Moreover, the cover 15 may become loose at the ends of the back plate as the glue dries or cracks and this further detracts from the appearance, as well .as the Wear, of the back. Again, when the cover projects beyond the end of the back plate, the edge of the latter is apt to cut through the cover, especially after the latter has Worked somewhatloose from the back plate.

These objectionable features of construc` tion have now been remedied by providing a thin metal end cap concaved to. the curvature of the back plate and comprisin an inner fiange 25 adapted to lit Within t eback plate and overlie the flaps 21 (Fig. 2), and an outer flange 26 slightly spaced from the back plate to accommodate the edge of the cover 15 which it overlies (Fig. 1). The cap may be held in place by any suitable means, such as by staking `the inner flange at 27 to the back plate. The cap thus serves not only to hold the lining iaps 21 against displacement during the assembly of the ring carrier 22, but also to hold the ends of the cover back snu ly against the plate 18. At the same time tie cap affords a durable wearing surface at the opposite ends of thev back, and thus protects the cover from Wear or injury at this point, which is one of the which the end cap, instead of forming an independent piece, is integral with the back plate. Thus, at the'upper end of Fig. 6 the back plate is shown with an extension 28, which in inished condition, shown at the lower end of the figure, is recurved over and spaced slightly from the outer face of the back plate to receive the edge of the cover 15. `Vlhen this `construction is used the cover is slipped beneath the previously recurved flange 28, lwhich may be then further compressed' against the cover to hold 1t firmly' as well as protect it against wear.

In Fig. 7 I have shown a back plate 29 from which the. recurved side margins 19 are omitted. In this construction the rlng carrier 22 is held in assembled position by the tongues 23, which pass through the holes 24V in the inner? face of the ring carrier. Low studs 30 formed in the ends of the back plate take into holes 31 in the inner face of the ring carrier and prevent longitudinal displacement of the parts after assembly. The back plate 29 has suiiicient spring not only to permit the slight ydeflection necessary when engaging the tongues 23 in the holes 24, but also to enter the studs 30 in the E holes 31 after the engagement with the tongues 23 has been effected. Obviously the studs may be formed on the inner portion of the ringcarrier and entered into the holes in the back plates `29 if preferred.

. It will be noted that in this construction the lining pieces 16a overlie the side margins of the back plate and are carried outwardV therefrom to the side boards 32here used to stiffen the cover, as is usual with a fabric cover The side board facing 33 overlaps this lining piece 16a and thus aids in holding it in position. The side boards 32 are spaced slightly 'from the back plate, so ythat the cover and lining piece 16a form a hinge at 34. for the sides of the book cover. The

Aend cap or {iange 28 is extremely valuable 1n a construction of this sort to strengthen and support the fabric cover 35 at the end of the hinge areas 34.

In Fig. 11 the lining piece 36, instead of passing beneath the back plate 18 is secured' at its outer margin to the sid-e board 32 of the cover and is carried over the side fianges 19] of the back plate and glued to the inner faces thereof, thus` affording a reinforcing,

hinge construction of the type shown in Fig/s. 7 to-10, but applied `to Va anged back plate type of',construction. In ythis figure the end cap is also shown as an] independent member, which is fitted in position after the other elements are assembled.

In Fig. 12 the end cap is shown welded,

soldered, or otherwise permanentlysecured lat.37 to the back plate 18. This affords a which do not de art from what I claim as.

my invention. ile I have shown the inner flange 25 of the end cap longer than the outer fiange 26, the particular relation of the flanges may be varied. I have found it an advantage, however, to make the inner flange 25 longer since it facilitates the assembly of the parts, by reason of the fact thatthe ring carrier rests upon the flange at the moment the tongues 23 enter the holes 24 in the ring carrier, s'o that upon the shoving home of the ring carrierV there is no danger that the end of the plate will be engaged by the carrier and the cap thus displaced, or the assembly impeded.

In the following claims I use the words end cap in a sense broad enough, where the context permits, to include a flange integral with the back plate as shown in Figs. 6 to 10 inclusive, and the claims are to be read on this understanding.

I claim- 1. In a loose-leaf binder, a cover, a me- -tallic back plate, means for securing the same Within the back of the cover, and an end cap permanently associated with Saidback plate and embracing the edge of the spaced from the outer faceithereof, said end cap embracing the edge of the cover at the back of the binderto protect the same and l hold it rmly against the outer face of the back plate.

3. In a loose-leaf binder, a metallic back plate having .tongues projecting inwardly therefrom, a loose-leaf ring'carrier having.

its inner face apertured to receive said tongues on the backrplate, said back plate having rigid stud means,`and the ring carrier having coperating recess means to hold lthe ring carrier against `longitudinal displacement on the back plate after the tongues i on the latter have been engaged through said apertures in the ringcarrier, together with a binder coverwithin the back lof which said metallic back plate lies, and

an end cap on the back plate embracing the edge of the cover at the back of the book andserving to hold the same against the back plate. i

4. In a loose-leaf binder, a cover, a mebinder to strengthen the hinge, protect the tallic back plate arranged Withinv the back cover and hold the latter firmly against the of the cover, a flexible lining engaging the back plate. 10 cover and back plate to reinforce the hinge In testimony whereof I have signed my 5 area adjacent the back plate, and an end cap name to this specification.

associated with the back plate and embracing the edge of the cover at the back of the WILLIAM BARDENHEUER. 

